President HR2510 CB radio display turns on but no channels showing

Recently bought this Uniden President HR2510 amatuer radio. I am trying to turn it on and it seems to at least power on, but the display shows no channel and no bars from the audio system. I attached a photo of what it shows. I did some research and maybe it was the old brownish glue that is causing a short? So I took the time to take it off in different areas. But still same issue. Any ideas on what to look for? Below is a photo of the current display when I turn it on. I tried a "master reset" but nothing happens.